Liquid crystal display and driver thereof

A driver of a liquid crystal display in which a plurality of driver units are cascaded,

• wherein each of said driver units comprises:
• flip-flops each with a wire of a clock signal inputted from the driver unit in a previous stage or an outside being connected to a clock terminal, a wire of an input signal inputted from the driver unit in the previous stage or the outside being connected to an input terminal, and a wire for outputting an output signal to the driver unit in a next stage or the outside being connected to an output terminal;
• inverters each with the wire of the clock signal inputted from said driver unit in the previous stage or the outside being connected to an input terminal, and the wire for outputting the clock signal to the driver unit in the next stage or the outside being connected to an output terminal;
• and
• an output circuit for outputting a signal to a drive element of the liquid crystal display correspondingly to the input signal inputted from said driver unit in the previous stage or the outside,
• the driver further comprising:
• a first output wire for outputting an inverting clock signal outputted by said inverter to the driver unit in the next stage or the outside;
• and
• a second output wire for outputting a non-inverting clock signal of the clock signal inputted from said driver unit in the previous stage or the outside to the driver unit in the next stage or the outside,
• wherein in said flip-flop, the first output wire of the driver unit in the previous stage or the wire of the clock signal inputted from the outside is connected to the clock terminal.

A liquid crystal display, comprising:

• a transistor board having a plurality of transistors each including a gate, a source and a drain;
• a common board including a common electrode and provided to oppose said transistor board via liquid crystal;
• a gate driver for driving the gates of said plurality of transistors;
• and
• a source driver with a plurality of source driver units being cascaded, for driving the sources of said plurality of transistors,
• wherein each of said source driver units comprising:
• inverters each with a wire of a clock signal inputted from said source driver unit in a previous stage or an outside being connected to an input terminal, and a wire for outputting the clock signal to the source driver unit in a next stage or the outside being connected to an output terminal;
• flip-flops each with the output terminal of said inverter being connected to a clock terminal, a wire of an input signal inputted from the source driver unit in the previous stage or the outside being connected to an input terminal, and a wire for outputting an output signal to the source driver unit in the next stage or the outside being connected to an output terminal;
• and
• an output circuit for outputting a signal to the source of the transistor of said transistor board correspondingly to the input signal inputted from said source driver unit in the previous stage or the outside;
• the liquid crystal display further comprising:
• a first output wire for outputting an inverting clock signal outputted by said inverter to the source driver unit in the next stage or the outside;
• and
• a second output wire for outputting a non-inverting clock signal of the clock signal inputted from said source driver unit in the previous stage or the outside to the source driver unit in the next stage or the outside,
• wherein in said flip-flop, the first output wire of the source driver unit in the previous stage or the wire of the clock signal inputted from the outside is connected to the clock terminal.

A driver of a liquid crystal display with a plurality of driver units being cascaded,

• wherein each of said driver units comprises:
• inverters each with a wire of a clock signal inputted from said driver unit in a previous stage or an outside being connected to an input terminal and a wire for outputting the clock signal to the driver unit in a next stage or the outside being connected to an output terminal;
• flip-flops each with the output terminal of said inverter being connected to a clock terminal, a wire of an input signal inputted from the driver unit in the previous stage or the outside being connected to an input terminal, and a wire for outputting an output signal to the driver unit in the next stage or the outside being connected to an output terminal;
• and
• an output circuit for outputting a signal to a drive element of the liquid crystal display correspondingly to the input signal inputted from said driver unit in the previous stage or the outside;
• the driver further comprising:
• a first output wire for outputting an inverting clock signal outputted by said inverter to the driver unit in the next stage or the outside;
• and
• a second output wire for outputting a non-inverting clock signal of the clock signal inputted from said driver unit in the previous stage or the outside to the driver unit in the next stage or the outside,
• wherein in said flip-flop, the first output wire of the source driver unit in the previous stage or the wire of the clock signal inputted from the outside is connected to the clock terminal.

A liquid crystal display, comprising:

• a transistor board having a plurality of transistors each including a gate, a source and a drain;
• a common board including a common electrode and provided to oppose said transistor board via liquid crystal;
• a gate driver for driving the gates of said plurality of transistors;
• and
• a source driver with a plurality of source driver units being cascaded, for driving the sources of said plurality of transistors,
• wherein each of even-numbered source driver units in said source driver comprising:
• flip-flops for outputting an output signal to the source driver unit in a next stage or an outside correspondingly to an input signal inputted from the source driver unit in a previous stage or the outside, in synchronism with either edge of a rising edge or a falling edge of a clock signal inputted from the source driver unit in the previous stage or the outside;
• and
• an output circuit for outputting a signal to the source of the transistor of said transistor board correspondingly to the input signal inputted from said source driver unit in the previous stage or the outside, and
• wherein each of odd-numbered source driver units in said source driver comprising:
• flip-flops for outputting the output signal to the source driver unit in the next stage or the outside correspondingly to the input signal inputted from the source driver unit in the previous stage or the outside, in synchronism with an edge being either edge of a falling edge or a rising edge of the clock signal inputted from the source driver unit in the previous stage or the outside and being different from that of the flip-flops of said even-numbered source driver units;
• and
• an output circuit for outputting a signal to the source of the transistor of said transistor board correspondingly to the input signal inputted from said source driver unit in the previous stage or the outside;
• the liquid crystal display further comprising:
• a first output wire for outputting an inverting clock signal outputted by said inverter to the source driver unit in the next stage or the outside;
• and
• a second output wire for outputting a non-inverting clock signal of the clock signal inputted from said source driver unit in the previous stage or the outside to the source driver unit in the next stage or the outside,
• wherein in said flip-flop, the first output wire of the source driver unit in the previous stage or the wire of the clock signal inputted from the outside is connected to the clock terminal.

A driver of a liquid crystal display with even-numbered and odd-numbered driver units being alternately cascaded,

• wherein each of said even-numbered driver units comprising:
• flip-flops for outputting an output signal to the driver unit in a next stage or an outside correspondingly to an input signal inputted from the driver unit in a previous stage or the outside, in synchronism with either edge of a rising edge or a falling edge of a clock signal inputted from the driver unit in the previous stage or the outside;
• and an output circuit for outputting a signal to a drive element of the liquid crystal device correspondingly to the input signal inputted from said driver unit in the previous stage or the outside, and
• wherein each of said odd-numbered driver units comprising:
• flip-flops for outputting the output signal to the driver unit in the next stage or the outside correspondingly to the input signal inputted from the driver unit in the previous stage or the outside, in synchronism with an edge being either edge of a falling edge or a rising edge of the clock signal inputted from the driver unit in the previous stage or the outside and being different from that of the flip-flop of said even-numbered driver unit;
• and
• an output circuit for outputting a signal to the drive element of the liquid crystal display correspondingly to the input signal inputted from the driver unit in the previous stage or the outside;
• the driver further comprising:
• a first output wire for outputting an inverting clock signal outputted by said inverter to the driver unit in the next stage or the outside;
• and
• a second output wire for outputting a non-inverting clock signal of the clock signal inputted from said driver unit in the previous stage or the outside to the driver unit in the next stage or the outside,
• wherein in said flip-flop, the first output wire of the driver unit in the previous stage or the wire of the clock signal inputted from the outside is connected to the clock terminal.